| Inhouse Employer | West | In-House | OM | CSO | Marsiling |
| ARSLAN SRS Singapore | South | In-House | RSOC/CAMS Op | SS | Tuas Link |
| Inhouse Employer | Central | In-House | SS | SS | Choa Chu Kang |
| AETOS Holdings Pte Ltd | West | - | SO | SS | Marsiling |
| Inhouse Employer | North | In-House | SO | SS | Yishun |
| RAS Security Pte Ltd | North | Commercial | SSO | SSO | Buona Vista |
| Force-One Security | North | Data Centre | OE | CSO | Ang Mo Kio |
| Apro Asian Protection Pte Ltd | Island Wide | - | OM | SSS | Woodlands |
| SATS Ltd | Island Wide | - | OM | SO | Sengkang |
| Titanium Safety & Security Pte Ltd | North | In-House | SSO | SSO | Toa Payoh |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SS | Punggol |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Dragnet Smartech Security Pte Ltd | Central | Commercial | SO | SO | Punggol |
| Resorts World Sentosa | South | Commercial | SS | SSS | Dover |
| Grand Copthorne Waterfront Hotel | Central | Hotel | Security Managment | SSS | Yishun |
| Inhouse Employer | Central | Country Club | OM | SS | Choa Chu Kang |
| G4S Secure Solutions (Singapore) Pte Ltd | East | In-House | SSO | SSO | Jurong East |
| Elid Technology International Pte Ltd | North | Condominium | SO | SO | Sengkang |
| Inhouse Employer | North | Industrial / Factory | SSO | SS | Yishun |
| Union Security Services Pte. Ltd. | North | Commercial | SS | Nil | Hougang |
| Regal Security & Fire Management Services Pte Ltd | Central | - | OE | SSS | Bukit Batok |
| IGC Security Services Pte Ltd | North | Commercial | SO | SO | Punggol |
| SATS Ltd | Island Wide | - | OM | CSO | Choa Chu Kang |
| SATS Ltd | Island Wide | - | OM | Nil | Woodlands |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SS | Pioneer |
